Beginners Guide to Processing 18650 Cells | Cell Database


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Share Pictures of Your Haul
#1
Let's fill this thread with pictures of your scrap batteries as you collect them.

My first lot from a local repair shop, think I got them around June. There is about 300 packs here and cost me around 25 cents per pack.
[Image: RO78xs7C.jpg]

My most recent lot from the same repair shop, 120 packs at 33 cents each Smile
[Image: Dg1siMYx.jpg]
hbpowerwall and R.Mitchell like this post
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#2
I used to have pictures with 2000 laptop batteries in a pile , but deleted them as i thought it would have looked too much like braging..
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#3
I plan on starting to collect packs. Do computer repair shops get any money for recycling them here in the USA? Also why did they charge more for the second box?
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#4
(01-02-2017, 10:08 AM)R.Mitchell Wrote: I plan on starting to collect packs. Do computer repair shops get any money for recycling them here in the USA? Also why did they charge more for the second box?

They've probably seen pictures on the net posted by folks gloating about how many and how cheaply they've been getting them ........ the more popular the reuse of these cells become, and the more we help promote their reuse the higher their price will be. 

Even in the last few months the per usable cell cost has increased massively, that's why some folks are considering using exclusively new.
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#5
    A modest collection, all free  Big Grin
I have 1000 amazing projects I have almost started. All I need is more time & money.
https://mattharmer.me/
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#6
(01-02-2017, 10:26 AM)Sean Wrote:
(01-02-2017, 10:08 AM)R.Mitchell Wrote: I plan on starting to collect packs. Do computer repair shops get any money for recycling them here in the USA? Also why did they charge more for the second box?

They've probably seen pictures on the net posted by folks gloating about how many and how cheaply they've been getting them ........ the more popular the reuse of these cells become, and the more we help promote their reuse the higher their price will be. 

Even in the last few months the per usable cell cost has increased massively, that's why some folks are considering using exclusively new.

I think it depends on where you live. There are tons of scapyards near where I live and I can get cells for $1.25 a pound. The problem is the supply of more cells is extremely erratic. One day they will have a barrel full of batteries for me to pick through. The next week nothing at all. 

Yes you are right, in the last few months the price of dead laptop batteries on ebay and other sites has risen dramatically. IMO to me it is no longer worth buying batteries online unless they are new old stock cells from ebay...

Buying local is the way to go. Just spend a few days asking around, someone will have plenty of them.
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#7
(01-13-2017, 07:01 AM)CUDAcores89 Wrote: Yes you are right, in the last few months the price of dead laptop batteries on ebay and other sites has risen dramatically. IMO to me it is no longer worth buying batteries online unless they are new old stock cells from ebay...

Buying local is the way to go. Just spend a few days asking around, someone will have plenty of them.

Agreed. Also, that's turning eBay in to a good place to get rid of our packs that we know DON'T work. If they're obviously bad before opening them, just put a big box of them on eBay and sell them as "used/not working laptop batteries". People will still buy them even though you're being perfectly honest saying they are not working. Lol.
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#8
(01-13-2017, 02:37 PM)mike Wrote:
(01-13-2017, 07:01 AM)CUDAcores89 Wrote: Yes you are right, in the last few months the price of dead laptop batteries on ebay and other sites has risen dramatically. IMO to me it is no longer worth buying batteries online unless they are new old stock cells from ebay...

Buying local is the way to go. Just spend a few days asking around, someone will have plenty of them.

Agreed. Also, that's turning eBay in to a good place to get rid of our packs that we know DON'T work. If they're obviously bad before opening them, just put a big box of them on eBay and sell them as "used/not working laptop batteries". People will still buy them even though you're being perfectly honest saying they are not working. Lol.

How do you know if a pack is bad before opening it? Do you know from just the externals of the laptop battery itself (dirty, rusty) or do you somehow check the voltage of the battery without actually opening it?
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#9
(01-13-2017, 03:02 PM)CUDAcores89 Wrote:
(01-13-2017, 02:37 PM)mike Wrote:
(01-13-2017, 07:01 AM)CUDAcores89 Wrote: Yes you are right, in the last few months the price of dead laptop batteries on ebay and other sites has risen dramatically. IMO to me it is no longer worth buying batteries online unless they are new old stock cells from ebay...

Buying local is the way to go. Just spend a few days asking around, someone will have plenty of them.

Agreed. Also, that's turning eBay in to a good place to get rid of our packs that we know DON'T work. If they're obviously bad before opening them, just put a big box of them on eBay and sell them as "used/not working laptop batteries". People will still buy them even though you're being perfectly honest saying they are not working. Lol.

How do you know if a pack is bad before opening it? Do you know from just the externals of the laptop battery itself (dirty, rusty) or do you somehow check the voltage of the battery without actually opening it?

You can isolate a few based on if they look bulged or smell bad. I suppose you could also voltage test them ahead of time if you can figure out which pins do what. Also, I've noticed certain types of batteries that are almost always bad. If you have a big lot of them, you can pick out the remaining packs that are the same and assume they're bad as well.
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#10

My first 60 packs.
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